How To Install Docker Compose on Debian 9 (ON-DEBIAN-9)
Docker Compose makes it easier for users to orchestrate the processes of Docker containers, including starting up, shutting down, and setting up intra-container linking and volumes.
Como hospedar um site com o Caddy no Ubuntu 18.04
O autor selecionou o Free and Open Source Fund para receber uma doação como parte do programa Write for DOnations. O Caddy é um servidor Web projetado em torno da…
How To Configure Apache Content Caching on CentOS 7
Caching is a method of improving server performance by allowing commonly requested content to be temporarily stored in a way that allows for faster access. This speeds up processing and delivery by cutting out some resource intensive operations. By creating effective…
How To Back Up and Restore Your Redis Data on Ubuntu 14.04
Redis is an in-memory, key-value cache and store (a database, that is) that can also be persisted (saved permanently) to disk. In this article, you’ll read how to back up a Redis database on an Ubuntu 14.04 server.
How to Install and Configure RabbitMQ on RHEL 7
How to Install and Configure RabbitMQ on RHEL 7 RabbitMQ is one of the most widely deployed open-source message brokers in the world. It implements the Advanced Message Queuing Protocol (AMQP) and provides reliable message delivery, flexible routing, and support for multiple messaging patterns including work queues, publish/subscribe, and request/reply. Applications use RabbitMQ to decouple […]
Systemd Journal Grows Unbounded
🟡 Medium ⏱ 5–30 min Last verified: 13 September 2020 Affected versions: Debian 10 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & […]
systemd Service Fails to Start on Boot
🟡 Medium ⏱ 5–30 min Last verified: 13 September 2020 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]
How to Configure DNS Resolution on SLES 12
Introduction This tutorial covers How to Configure DNS Resolution on SLES 12 on SLES 12. SLES 12 (SUSE Linux Enterprise Server 16) is SUSE’s enterprise-grade Linux distribution. It uses the zypper package manager, AppArmor for mandatory access control, and systemctl for service management. Prerequisites Ensure your SLES 12 system is up to date: zypper refresh […]
OpenBSD 7.6 — ssh — errata 003_ssh — reliability fix — syspatch and remediation
🟡 Medium ⏱ 10–30 min Last verified: 25 May 2026 Affected versions: OpenBSD 7.6 📖 ~4 min read • Source: OpenBSD 7.6 errata 003_ssh Errata topic: Reliability: ssh (hppa m88k mips64 powerpc powerpc64 sh sparc64) Issued: October 29, 2024 Upstream summary: mlkem768x25519-sha256 byte order bug on big-endian machines. Table of contents Symptom & Impact […]
How to Use GCC on IBM AIX 7.1
Introduction IBM AIX 7.1 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use gcc on ibm aix 7.1 on IBM AIX […]
